From defcfde17ccf27d8ea9693a79e7a9239cd604b90 Mon Sep 17 00:00:00 2001
From: Alexandre Julliard <julliard@winehq.org>
Date: Wed, 2 Jan 2013 18:09:34 +0100
Subject: [PATCH] winex11: Add an option to disable shaping of layered window
 to work around compositor bugs.

---
 dlls/winex11.drv/bitblt.c      | 2 ++
 dlls/winex11.drv/x11drv.h      | 1 +
 dlls/winex11.drv/x11drv_main.c | 4 ++++
 3 files changed, 7 insertions(+)

diff --git a/dlls/winex11.drv/bitblt.c b/dlls/winex11.drv/bitblt.c
index 161fa735d03..84e8751fcdf 100644
--- a/dlls/winex11.drv/bitblt.c
+++ b/dlls/winex11.drv/bitblt.c
@@ -1621,6 +1621,8 @@ static void update_surface_region( struct x11drv_window_surface *surface )
     int x, y, start, width;
     HRGN rgn;
 
+    if (!shape_layered_windows) return;
+
     if (!surface->is_argb && surface->color_key == CLR_INVALID)
     {
         XShapeCombineMask( gdi_display, surface->window, ShapeBounding, 0, 0, None, ShapeSet );
diff --git a/dlls/winex11.drv/x11drv.h b/dlls/winex11.drv/x11drv.h
index 0c462d6ede9..707ee039230 100644
--- a/dlls/winex11.drv/x11drv.h
+++ b/dlls/winex11.drv/x11drv.h
@@ -218,6 +218,7 @@ extern const int X11DRV_XROPfunction[];
 
 extern int client_side_graphics DECLSPEC_HIDDEN;
 extern int client_side_with_render DECLSPEC_HIDDEN;
+extern int shape_layered_windows DECLSPEC_HIDDEN;
 extern const struct gdi_dc_funcs *X11DRV_XRender_Init(void) DECLSPEC_HIDDEN;
 
 extern struct opengl_funcs *get_glx_driver(UINT) DECLSPEC_HIDDEN;
diff --git a/dlls/winex11.drv/x11drv_main.c b/dlls/winex11.drv/x11drv_main.c
index ef6b1a9811c..329fea584b0 100644
--- a/dlls/winex11.drv/x11drv_main.c
+++ b/dlls/winex11.drv/x11drv_main.c
@@ -81,6 +81,7 @@ int private_color_map = 0;
 int primary_monitor = 0;
 int client_side_graphics = 1;
 int client_side_with_render = 1;
+int shape_layered_windows = 1;
 int copy_default_colors = 128;
 int alloc_system_colors = 256;
 DWORD thread_data_tls_index = TLS_OUT_OF_INDEXES;
@@ -397,6 +398,9 @@ static void setup_options(void)
     if (!get_config_key( hkey, appkey, "UseXIM", buffer, sizeof(buffer) ))
         use_xim = IS_OPTION_TRUE( buffer[0] );
 
+    if (!get_config_key( hkey, appkey, "ShapeLayeredWindows", buffer, sizeof(buffer) ))
+        shape_layered_windows = IS_OPTION_TRUE( buffer[0] );
+
     if (!get_config_key( hkey, appkey, "PrivateColorMap", buffer, sizeof(buffer) ))
         private_color_map = IS_OPTION_TRUE( buffer[0] );